<!DOCTYPE html>
<html lang="zh-Hans">
<head>
  <meta charset="UTF-8">
<meta name="viewport" content="width=device-width">
<meta name="theme-color" content="#222"><meta name="generator" content="Hexo 6.2.0">


  <link rel="apple-touch-icon" sizes="180x180" href="/vhuichen.ico">
  <link rel="icon" type="image/png" sizes="32x32" href="/vhuichen.ico">
  <link rel="icon" type="image/png" sizes="16x16" href="/vhuichen.ico">
  <link rel="mask-icon" href="/vhuichen.ico" color="#222">

<link rel="stylesheet" href="/css/main.css">



<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.2.0/css/all.min.css" integrity="sha256-AbA177XfpSnFEvgpYu1jMygiLabzPCJCRIBtR5jGc0k=" crossorigin="anonymous">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.1.1/animate.min.css" integrity="sha256-PR7ttpcvz8qrF57fur/yAx1qXMFJeJFiA6pSzWi0OIE=" crossorigin="anonymous">

<script class="next-config" data-name="main" type="application/json">{"hostname":"vhuichen.github.io","root":"/","images":"/images","scheme":"Pisces","darkmode":false,"version":"8.13.0","exturl":false,"sidebar":{"position":"left","display":"display","padding":18,"offset":12},"copycode":{"enable":false,"style":null},"bookmark":{"enable":false,"color":"#222","save":"auto"},"mediumzoom":false,"lazyload":false,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"stickytabs":false,"motion":{"enable":true,"async":false,"transition":{"post_block":"fadeIn","post_header":"fadeInDown","post_body":"fadeInDown","coll_header":"fadeInLeft","sidebar":"fadeInUp"}},"prism":false,"i18n":{"placeholder":"Searching...","empty":"We didn't find any results for the search: ${query}","hits_time":"${hits} results found in ${time} ms","hits":"${hits} results found"}}</script><script src="/js/config.js"></script>

    <meta name="description" content="序言单元测试的基本操作。 新建单元测试文件一般项目会默认建立一个单元测试文件，如果没有或者需要创建新的单元测试文件，可以创建一个新的文件，在选择文件类型为Unit Testing 类型。创建好文件后就可以开始了。 基本方法setup开始测试的时候会调用这个方法。可以在这个位置初始化一些对象、数值等。 tearDown测试结束的时候会调用这个方法。一般在这里释放对象。 testExample需要进行">
<meta property="og:type" content="article">
<meta property="og:title" content="iOS开发之单元测试">
<meta property="og:url" content="https://vhuichen.github.io/2018/01/2018/01/iOS%E5%BC%80%E5%8F%91%E4%B9%8B%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95/index.html">
<meta property="og:site_name" content="vhuichen">
<meta property="og:description" content="序言单元测试的基本操作。 新建单元测试文件一般项目会默认建立一个单元测试文件，如果没有或者需要创建新的单元测试文件，可以创建一个新的文件，在选择文件类型为Unit Testing 类型。创建好文件后就可以开始了。 基本方法setup开始测试的时候会调用这个方法。可以在这个位置初始化一些对象、数值等。 tearDown测试结束的时候会调用这个方法。一般在这里释放对象。 testExample需要进行">
<meta property="og:locale">
<meta property="og:image" content="http://ovsbvt5li.bkt.clouddn.com/18-3-27/53340373.jpg">
<meta property="og:image" content="http://ovsbvt5li.bkt.clouddn.com/18-3-27/26837240.jpg">
<meta property="article:published_time" content="2018-01-05T12:12:33.000Z">
<meta property="article:modified_time" content="2018-07-01T08:09:47.811Z">
<meta property="article:author" content="vhuichen">
<meta property="article:tag" content="单元测试">
<meta name="twitter:card" content="summary">
<meta name="twitter:image" content="http://ovsbvt5li.bkt.clouddn.com/18-3-27/53340373.jpg">


<link rel="canonical" href="https://vhuichen.github.io/2018/01/2018/01/iOS%E5%BC%80%E5%8F%91%E4%B9%8B%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95/">



<script class="next-config" data-name="page" type="application/json">{"sidebar":"","isHome":false,"isPost":true,"lang":"zh-Hans","comments":true,"permalink":"https://vhuichen.github.io/2018/01/2018/01/iOS%E5%BC%80%E5%8F%91%E4%B9%8B%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95/","path":"2018/01/2018/01/iOS开发之单元测试/","title":"iOS开发之单元测试"}</script>

<script class="next-config" data-name="calendar" type="application/json">""</script>
<title>iOS开发之单元测试 | vhuichen</title>
  






  <noscript>
    <link rel="stylesheet" href="/css/noscript.css">
  </noscript>
</head>

<body itemscope itemtype="http://schema.org/WebPage" class="use-motion">
  <div class="headband"></div>

  <main class="main">
    <header class="header" itemscope itemtype="http://schema.org/WPHeader">
      <div class="header-inner"><div class="site-brand-container">
  <div class="site-nav-toggle">
    <div class="toggle" aria-label="Toggle navigation bar" role="button">
        <span class="toggle-line"></span>
        <span class="toggle-line"></span>
        <span class="toggle-line"></span>
    </div>
  </div>

  <div class="site-meta">

    <a href="/" class="brand" rel="start">
      <i class="logo-line"></i>
      <p class="site-title">vhuichen</p>
      <i class="logo-line"></i>
    </a>
      <p class="site-subtitle" itemprop="description">记录、分享</p>
  </div>

  <div class="site-nav-right">
    <div class="toggle popup-trigger">
    </div>
  </div>
</div>



<nav class="site-nav">
  <ul class="main-menu menu"><li class="menu-item menu-item-home"><a href="/" rel="section">Home</a></li><li class="menu-item menu-item-archives"><a href="/archives/" rel="section">Archives</a></li><li class="menu-item menu-item-about"><a href="/about/" rel="section">About</a></li>
  </ul>
</nav>




</div>
        
  
  <div class="toggle sidebar-toggle" role="button">
    <span class="toggle-line"></span>
    <span class="toggle-line"></span>
    <span class="toggle-line"></span>
  </div>

  <aside class="sidebar">

    <div class="sidebar-inner sidebar-nav-active sidebar-toc-active">
      <ul class="sidebar-nav">
        <li class="sidebar-nav-toc">
          Table of Contents
        </li>
        <li class="sidebar-nav-overview">
          Overview
        </li>
      </ul>

      <div class="sidebar-panel-container">
        <!--noindex-->
        <div class="post-toc-wrap sidebar-panel">
            <div class="post-toc animated"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#%E5%BA%8F%E8%A8%80"><span class="nav-number">1.</span> <span class="nav-text">序言</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#%E6%96%B0%E5%BB%BA%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95%E6%96%87%E4%BB%B6"><span class="nav-number">1.0.1.</span> <span class="nav-text">新建单元测试文件</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#%E5%9F%BA%E6%9C%AC%E6%96%B9%E6%B3%95"><span class="nav-number">1.0.2.</span> <span class="nav-text">基本方法</span></a><ol class="nav-child"><li class="nav-item nav-level-4"><a class="nav-link" href="#setup"><span class="nav-number">1.0.2.1.</span> <span class="nav-text">setup</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#tearDown"><span class="nav-number">1.0.2.2.</span> <span class="nav-text">tearDown</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#testExample"><span class="nav-number">1.0.2.3.</span> <span class="nav-text">testExample</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#testPerformanceExample"><span class="nav-number">1.0.2.4.</span> <span class="nav-text">testPerformanceExample</span></a></li></ol></li><li class="nav-item nav-level-3"><a class="nav-link" href="#%E5%BC%82%E6%AD%A5%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95"><span class="nav-number">1.0.3.</span> <span class="nav-text">异步单元测试</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#%E6%97%B6%E9%97%B4%E6%80%A7%E8%83%BD%E6%B5%8B%E8%AF%95"><span class="nav-number">1.0.4.</span> <span class="nav-text">时间性能测试</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#%E5%B8%B8%E7%94%A8%E6%96%AD%E8%A8%80"><span class="nav-number">1.0.5.</span> <span class="nav-text">常用断言</span></a></li></ol></li></ol></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E6%80%BB%E7%BB%93"><span class="nav-number">2.</span> <span class="nav-text">总结</span></a></li></ol></div>
        </div>
        <!--/noindex-->

        <div class="site-overview-wrap sidebar-panel">
          <div class="site-author site-overview-item animated" itemprop="author" itemscope itemtype="http://schema.org/Person">
    <img class="site-author-image" itemprop="image" alt="vhuichen"
      src="/images/vhuichen.jpg">
  <p class="site-author-name" itemprop="name">vhuichen</p>
  <div class="site-description" itemprop="description"></div>
</div>
<div class="site-state-wrap site-overview-item animated">
  <nav class="site-state">
      <div class="site-state-item site-state-posts">
        <a href="/archives/">
          <span class="site-state-item-count">78</span>
          <span class="site-state-item-name">posts</span>
        </a>
      </div>
      <div class="site-state-item site-state-categories">
          <a href="/categories/">
        <span class="site-state-item-count">11</span>
        <span class="site-state-item-name">categories</span></a>
      </div>
      <div class="site-state-item site-state-tags">
          <a href="/tags/">
        <span class="site-state-item-count">86</span>
        <span class="site-state-item-name">tags</span></a>
      </div>
  </nav>
</div>



        </div>
      </div>
    </div>
  </aside>
  <div class="sidebar-dimmer"></div>


    </header>

    
  <div class="back-to-top" role="button" aria-label="Back to top">
    <i class="fa fa-arrow-up"></i>
    <span>0%</span>
  </div>

<noscript>
  <div class="noscript-warning">Theme NexT works best with JavaScript enabled</div>
</noscript>


    <div class="main-inner post posts-expand">


  


<div class="post-block">
  
  

  <article itemscope itemtype="http://schema.org/Article" class="post-content" lang="zh-Hans">
    <link itemprop="mainEntityOfPage" href="https://vhuichen.github.io/2018/01/2018/01/iOS%E5%BC%80%E5%8F%91%E4%B9%8B%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95/">

    <span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
      <meta itemprop="image" content="/images/vhuichen.jpg">
      <meta itemprop="name" content="vhuichen">
    </span>

    <span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
      <meta itemprop="name" content="vhuichen">
      <meta itemprop="description" content="">
    </span>

    <span hidden itemprop="post" itemscope itemtype="http://schema.org/CreativeWork">
      <meta itemprop="name" content="iOS开发之单元测试 | vhuichen">
      <meta itemprop="description" content="">
    </span>
      <header class="post-header">
        <h1 class="post-title" itemprop="name headline">
          iOS开发之单元测试
        </h1>

        <div class="post-meta-container">
          <div class="post-meta">
    <span class="post-meta-item">
      <span class="post-meta-item-icon">
        <i class="far fa-calendar"></i>
      </span>
      <span class="post-meta-item-text">Posted on</span>

      <time title="Created: 2018-01-05 20:12:33" itemprop="dateCreated datePublished" datetime="2018-01-05T20:12:33+08:00">2018-01-05</time>
    </span>
    <span class="post-meta-item">
      <span class="post-meta-item-icon">
        <i class="far fa-calendar-check"></i>
      </span>
      <span class="post-meta-item-text">Edited on</span>
      <time title="Modified: 2018-07-01 16:09:47" itemprop="dateModified" datetime="2018-07-01T16:09:47+08:00">2018-07-01</time>
    </span>
    <span class="post-meta-item">
      <span class="post-meta-item-icon">
        <i class="far fa-folder"></i>
      </span>
      <span class="post-meta-item-text">In</span>
        <span itemprop="about" itemscope itemtype="http://schema.org/Thing">
          <a href="/categories/iOS%E5%BC%80%E5%8F%91/" itemprop="url" rel="index"><span itemprop="name">iOS开发</span></a>
        </span>
    </span>

  
</div>

        </div>
      </header>

    
    
    
    <div class="post-body" itemprop="articleBody">
        <h1 id="序言"><a href="#序言" class="headerlink" title="序言"></a>序言</h1><p>单元测试的基本操作。</p>
<h3 id="新建单元测试文件"><a href="#新建单元测试文件" class="headerlink" title="新建单元测试文件"></a>新建单元测试文件</h3><p>一般项目会默认建立一个单元测试文件，如果没有或者需要创建新的单元测试文件，可以创建一个新的文件，在选择文件类型为Unit Testing 类型。创建好文件后就可以开始了。<br><img src="http://ovsbvt5li.bkt.clouddn.com/18-3-27/53340373.jpg"></p>
<h3 id="基本方法"><a href="#基本方法" class="headerlink" title="基本方法"></a>基本方法</h3><h4 id="setup"><a href="#setup" class="headerlink" title="setup"></a>setup</h4><p>开始测试的时候会调用这个方法。可以在这个位置初始化一些对象、数值等。</p>
<h4 id="tearDown"><a href="#tearDown" class="headerlink" title="tearDown"></a>tearDown</h4><p>测试结束的时候会调用这个方法。一般在这里释放对象。</p>
<h4 id="testExample"><a href="#testExample" class="headerlink" title="testExample"></a>testExample</h4><p>需要进行单元测试的方法，可以自定义方法名，方法名必须用test开头，返回类型是void。</p>
<h4 id="testPerformanceExample"><a href="#testPerformanceExample" class="headerlink" title="testPerformanceExample"></a>testPerformanceExample</h4><p>这里可以进行一下性能测试，可以测试代码的执行时间。</p>
<h3 id="异步单元测试"><a href="#异步单元测试" class="headerlink" title="异步单元测试"></a>异步单元测试</h3><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre><span class="line">- (<span class="type">void</span>)testExample &#123;</span><br><span class="line">    <span class="comment">// This is an example of a functional test case.</span></span><br><span class="line">    <span class="comment">// Use XCTAssert and related functions to verify your tests produce the correct results.</span></span><br><span class="line">    <span class="comment">// 单元测试</span></span><br><span class="line">    </span><br><span class="line">    <span class="built_in">XCTestExpectation</span> *expectation = [<span class="keyword">self</span> expectationWithDescription:<span class="string">@&quot;出错了。。。。。&quot;</span>];</span><br><span class="line">    <span class="comment">//[self expectationForNotification:(@&quot;testNoti&quot;) object:nil handler:nil];</span></span><br><span class="line">    </span><br><span class="line">    <span class="built_in">dispatch_async</span>(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, <span class="number">0</span>), ^&#123;</span><br><span class="line">        sleep(<span class="number">5</span>);</span><br><span class="line">        <span class="built_in">XCTAssertTrue</span>(<span class="literal">true</span>,<span class="string">@&quot;数据出错&quot;</span>);</span><br><span class="line">        <span class="comment">//测试成功</span></span><br><span class="line">        [expectation fulfill];</span><br><span class="line">        <span class="comment">//[[NSNotificationCenter defaultCenter] postNotificationName:@&quot;testNoti&quot; object:nil];</span></span><br><span class="line">    &#125;);</span><br><span class="line">    </span><br><span class="line">    [<span class="keyword">self</span> waitForExpectationsWithTimeout:<span class="number">3</span> handler:^(<span class="built_in">NSError</span> * _Nullable error) &#123;</span><br><span class="line">        <span class="built_in">NSLog</span>(<span class="string">@&quot;%@&quot;</span>,error);</span><br><span class="line">    &#125;];</span><br><span class="line">&#125;</span><br><span class="line"><span class="comment">// 当任务中设置的睡眠时间大于等待时间的时候就会报错。</span></span><br><span class="line"><span class="comment">// 使用 XCTestExpectation 和 Notification 均能实现。</span></span><br></pre></td></tr></table></figure>

<h3 id="时间性能测试"><a href="#时间性能测试" class="headerlink" title="时间性能测试"></a>时间性能测试</h3><p>当 Baseline *（1 - Max STDDEV）大于 Average 时，测试通过，小于则不通过。</p>
<p><img src="http://ovsbvt5li.bkt.clouddn.com/18-3-27/26837240.jpg"></p>
<h3 id="常用断言"><a href="#常用断言" class="headerlink" title="常用断言"></a>常用断言</h3><p>&#x2F;&#x2F; 如果 expression 不为 true，则提示后面的错误信息。<br>XCTAssertTrue(expression, format…)<br>&#x2F;&#x2F; 如果 expression 不为 nil，则提示后面的错误信息。<br>XCTAssertNil(expression, …)<br>&#x2F;&#x2F; 如果 expression1 expression2 不相等，则提示后面的错误信息。<br>XCTAssertEqual(expression1, expression2, format…)   </p>
<h1 id="总结"><a href="#总结" class="headerlink" title="总结"></a>总结</h1><p>单元测试不需要搭建环境，却可以为我们节省一定的时间，不需要每次调试功能都要一个一个点进去。<br>如果可以将单元测试集成到CI中，将更方便。</p>

    </div>

    
    
    

    <footer class="post-footer">
          <div class="post-tags">
              <a href="/tags/%E5%8D%95%E5%85%83%E6%B5%8B%E8%AF%95/" rel="tag"># 单元测试</a>
          </div>

        

          <div class="post-nav">
            <div class="post-nav-item">
                <a href="/2017/11/2017/11/iOS%E5%BC%80%E5%8F%91%E4%B9%8BAPP%E9%BB%98%E8%AE%A4%E8%AF%AD%E8%A8%80/" rel="prev" title="iOS开发之APP默认语言">
                  <i class="fa fa-chevron-left"></i> iOS开发之APP默认语言
                </a>
            </div>
            <div class="post-nav-item">
                <a href="/2018/01/2018/01/iOS%E5%9F%BA%E7%A1%80%E4%B9%8B%E7%BA%A6%E6%9D%9F/" rel="next" title="iOS基础之约束">
                  iOS基础之约束 <i class="fa fa-chevron-right"></i>
                </a>
            </div>
          </div>
    </footer>
  </article>
</div>






</div>
  </main>

  <footer class="footer">
    <div class="footer-inner">


<div class="copyright">
  &copy; 2015 – 
  <span itemprop="copyrightYear">2022</span>
  <span class="with-love">
    <i class="fa fa-heart"></i>
  </span>
  <span class="author" itemprop="copyrightHolder">vhuichen</span>
</div>
  <div class="powered-by">Powered by <a href="https://hexo.io/" rel="noopener" target="_blank">Hexo</a> & <a href="https://theme-next.js.org/pisces/" rel="noopener" target="_blank">NexT.Pisces</a>
  </div>

    </div>
  </footer>

  
  <script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/3.2.1/anime.min.js" integrity="sha256-XL2inqUJaslATFnHdJOi9GfQ60on8Wx1C2H8DYiN1xY=" crossorigin="anonymous"></script>
<script src="/js/comments.js"></script><script src="/js/utils.js"></script><script src="/js/motion.js"></script><script src="/js/next-boot.js"></script>

  





  





</body>
</html>
